/* ==========================================================================
   Brainworks Agency - B2B Performance Driven Dark Minimal Stylesheet
   Theme: Professional, Performance Driven, Minimal
   Color Palette: Dark Charcoal / Black (#0A0B0E, #111318, #151821)
   Accent: Electric Blue (#2563EB) strictly for CTAs, metrics, hover, focus
   ========================================================================== */

:root {
  /* Dark Charcoal & Black Theme */
  --bg-primary: #0a0b0e;
  --bg-secondary: #111318;
  --bg-card: #151821;
  --bg-card-hover: #1a1e29;
  --bg-cta: #0c1222;
  
  /* Electric Blue Accent (Conversion Points Only) */
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-accent-light: #3b82f6;
  --color-accent-bg: rgba(37, 99, 235, 0.1);
  --color-accent-border: rgba(37, 99, 235, 0.35);

  /* Typography Colors */
  --text-main: #ffffff;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Borders & Dividers */
  --border-color: #222634;
  --border-light: #2d3345;
  --border-focus: #2563eb;

  /* Typography */
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;

  /* Dimensions & Spacing */
  --container-max: 1200px;
  --header-height: 76px;
  --section-padding: 110px 0;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.65;
  letter-spacing: -0.02em;
  overflow-x: hidden;
  word-break: keep-all;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* Accessibility Focus Rings (Keyboard Navigation Only) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.tab-btn:focus-visible,
.media-tab-btn:focus-visible,
.insight-tab-btn:focus-visible,
.channel-card:focus-visible {
  outline: 2px solid var(--color-accent-light);
  outline-offset: 3px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-padding {
  padding: var(--section-padding);
}

/* Section Header Typography */
.section-header {
  margin-bottom: 56px;
}

.section-header.text-center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-subhead,
.competence-label {
  display: inline-block;
  font-size: clamp(1.15rem, 1.5vw, 1.375rem);
  font-weight: 800;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.3;
}

.section-subhead {
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.85rem, 3.2vw, 2.6rem);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Button System (Solid Electric Blue CTA & Clean Outline) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--text-main);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border-color: var(--border-light);
}

.btn-outline:hover {
  border-color: var(--text-main);
  background-color: rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
}

/* ==========================================================================
   1. HEADER (#header)
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(2, 6, 23, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.header.scrolled {
  background-color: rgba(10, 11, 14, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.header-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 12px;
  user-select: none;
}

.brand-logo img {
  width: 50px;
  height: auto;
  display: block;
  flex-shrink: 0;
  background: transparent;
  box-shadow: none;
  border: none;
  padding: 0;
  margin: 0;
  object-fit: contain;
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.brand-logo-text strong {
  font-size: 28px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-family: 'Pretendard', sans-serif;
  transition: color var(--transition-fast);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
}

.brand-logo-text span {
  font-size: 11px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.15em;
  margin-top: 3px;
  line-height: 1;
  text-transform: uppercase;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
}

.logo-link:hover .brand-logo-text strong {
  color: #FFFFFF;
}

.logo-link:hover .brand-logo-text span {
  color: #FFFFFF;
}

.nav-desktop {
  margin-left: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  transition: color var(--transition-fast);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-link.active {
  font-weight: 700;
}

.nav-menu .nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(37, 99, 235, 0.6);
  border-radius: 2px;
}

.header-cta-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  padding: 6px;
  cursor: pointer;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transform: translateY(-120%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 999;
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-drawer .nav-link {
  font-size: 1.1rem;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-drawer .nav-link:last-child {
  border-bottom: none;
}

/* ==========================================================================
   2. HERO SECTION (#hero)
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 50px);
  padding-bottom: 90px;
  background-color: #050b14;
  background-image: 
    linear-gradient(180deg, rgba(5, 11, 20, 0.45) 0%, transparent 25%, transparent 75%, rgba(5, 11, 20, 0.90) 100%),
    linear-gradient(to right, rgba(5, 11, 20, 0.84) 0%, rgba(5, 11, 20, 0.76) 28%, rgba(5, 11, 20, 0.40) 50%, rgba(5, 11, 20, 0.08) 72%, transparent 100%),
    url('../images/hero/brainworks-hero.webp');
  background-position: center right;
  background-size: cover;
  background-repeat: no-repeat;
  border-bottom: 1px solid var(--border-color);
}

.hero-inner {
  max-width: 960px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-accent);
  background-color: var(--color-accent-bg);
  border: 1px solid var(--color-accent-border);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}

.hero-headline {
  font-size: clamp(2.4rem, 5.2vw, 4.1rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.04em;
  color: var(--text-main);
  margin-bottom: 24px;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.75);
}

.hero-subhead {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 820px;
  margin-bottom: 40px;
  font-weight: 400;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.65);
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   3. 신뢰 지표 SECTION (#metrics)
   ========================================================================== */
.metrics-section {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 64px 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.metric-card {
  padding: 20px 16px;
  border-right: 1px solid var(--border-color);
}

.metric-card:last-child {
  border-right: none;
}

.metric-number-wrap {
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  font-weight: 900;
  color: var(--color-accent);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 10px;
  display: flex;
  align-items: baseline;
}

.metric-unit {
  font-size: 0.85em;
  margin-left: 2px;
}

.metric-unit-text {
  font-size: 0.55em;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin-left: 6px;
}

.metric-wrap-text {
  font-size: clamp(1.4rem, 2.2vw, 1.95rem);
  letter-spacing: -0.01em;
}

.metric-title {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.metric-sub {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   BRAND SHOWREEL SECTION (#showreel)
   ========================================================================== */
.showreel-section {
  background: radial-gradient(circle at 50% 20%, rgba(37, 99, 235, 0.08) 0%, var(--bg-secondary) 75%);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.showreel-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
}

.showreel-player-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 640px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  background: #090b10;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(37, 99, 235, 0.06);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.showreel-player-frame:hover {
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.6), 0 0 50px rgba(37, 99, 235, 0.1);
}

.showreel-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Fallback visual container */
.showreel-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 40%, rgba(37, 99, 235, 0.12) 0%, #090b10 70%);
  z-index: 2;
  transition: opacity 0.4s ease, visibility 0.4s ease;
  padding: 24px;
  text-align: center;
}

.showreel-player-frame.is-playing .showreel-fallback {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.showreel-fallback-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.6;
  pointer-events: none;
}

.showreel-fallback-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  max-width: 520px;
}

.showreel-fallback-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(37, 99, 235, 0.3);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #60a5fa;
  text-transform: uppercase;
}

.showreel-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3b82f6;
  box-shadow: 0 0 10px #3b82f6;
  animation: showreelPulse 2s infinite ease-in-out;
}

@keyframes showreelPulse {
  0%, 100% {
    transform: scale(0.9);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.25);
    opacity: 1;
  }
}

.showreel-fallback-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.showreel-fallback-logo-wrap {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.showreel-fallback-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.showreel-fallback-brand-text {
  text-align: left;
}

.showreel-agency-name {
  display: block;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--text-main);
  line-height: 1.2;
}

.showreel-agency-tag {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.showreel-fallback-message {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-muted);
  word-break: keep-all;
}

.showreel-fallback-message strong {
  display: block;
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  color: #93c5fd;
  margin-bottom: 4px;
}

/* Bottom subtle overlay bar */
.showreel-overlay-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 20px;
  background: linear-gradient(to top, rgba(9, 11, 16, 0.85) 0%, rgba(9, 11, 16, 0.4) 70%, transparent 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 3;
  pointer-events: none;
}

.showreel-overlay-tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.75);
}

.showreel-overlay-duration {
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.5);
}

.showreel-controls-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.showreel-sound-toggle-btn {
  pointer-events: auto;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 9999px;
  height: 28px;
  padding: 0 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  color: #ffffff;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  white-space: nowrap;
  user-select: none;
  -webkit-user-select: none;
}

.showreel-sound-toggle-btn:hover {
  background: rgba(37, 99, 235, 0.65);
  border-color: rgba(96, 165, 250, 0.85);
  transform: scale(1.04);
}

.showreel-sound-toggle-btn:focus-visible {
  outline: 2px solid #60a5fa;
  outline-offset: 2px;
}

.showreel-sound-toggle-btn.is-unmuted {
  background: rgba(37, 99, 235, 0.85);
  border-color: rgba(96, 165, 250, 0.95);
  color: #ffffff;
}

.showreel-sound-toggle-btn.is-unmuted:hover {
  background: rgba(29, 78, 216, 0.95);
}

.showreel-sound-toggle-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.showreel-play-toggle-btn {
  pointer-events: auto;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  padding: 0;
}

.showreel-play-toggle-btn:hover {
  background: rgba(37, 99, 235, 0.6);
  border-color: rgba(96, 165, 250, 0.8);
  transform: scale(1.08);
}

.showreel-play-toggle-btn:focus-visible {
  outline: 2px solid #60a5fa;
  outline-offset: 2px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .showreel-player-frame {
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-md);
  }

  .showreel-video {
    object-fit: contain;
    background: #000000;
  }

  .showreel-fallback-content {
    gap: 12px;
  }

  .showreel-fallback-badge {
    font-size: 0.7rem;
    padding: 4px 10px;
  }

  .showreel-fallback-message {
    font-size: 0.84rem;
  }
}

@media (max-width: 480px) {
  .showreel-player-frame {
    aspect-ratio: 16 / 9;
    max-height: none;
  }

  .showreel-video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000000;
  }

  .showreel-fallback {
    padding: 16px;
  }

  .showreel-fallback-brand {
    gap: 10px;
  }

  .showreel-fallback-logo-wrap {
    width: 40px;
    height: 40px;
  }

  .showreel-fallback-logo {
    width: 26px;
    height: 26px;
  }

  .showreel-agency-name {
    font-size: 1rem;
  }

  .showreel-agency-tag {
    font-size: 0.68rem;
  }

  .showreel-fallback-message {
    font-size: 0.8rem;
    line-height: 1.5;
  }

  .showreel-overlay-bar {
    padding: 8px 14px;
  }

  .showreel-overlay-duration {
    display: none;
  }
}

/* Accessibility: prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .showreel-video {
    object-position: center;
  }
  .showreel-pulse-dot {
    animation: none;
  }
  .showreel-fallback {
    transition: none;
  }
}

/* ==========================================================================
   4. 회사소개 / 핵심 역량 SECTION (#about)
   ========================================================================== */
.about-section {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

/* Upper 2-column layout: Company Identity & Execution Metrics */
.about-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 72px;
}

.about-identity {
  display: flex;
  flex-direction: column;
}

.about-headline {
  font-size: clamp(1.85rem, 2.7vw, 2.5rem);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.35;
  letter-spacing: -0.03em;
  margin-top: 0;
  margin-bottom: 20px;
  word-break: keep-all;
}

.about-desc {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.75;
  word-break: keep-all;
}

/* 4 Metrics Grid */
.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.about-stat-card {
  background: rgba(21, 24, 33, 0.7);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.about-stat-card:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 99, 235, 0.4);
  background: rgba(26, 30, 41, 0.85);
}

.about-stat-number {
  font-size: clamp(1.75rem, 2.3vw, 2.2rem);
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 8px;
  font-family: var(--font-sans);
}

.about-stat-number .stat-unit {
  color: var(--color-accent);
  font-weight: 800;
  margin-left: 2px;
}

.about-stat-number.founded-number {
  font-size: clamp(1.5rem, 2vw, 1.85rem);
  letter-spacing: -0.01em;
}

.about-stat-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
}

.about-stat-sub {
  font-size: 0.8rem;
  color: var(--color-accent-light);
  font-weight: 600;
  margin-top: 6px;
}

/* Lower Group: CORE COMPETENCE */
.about-competence-wrap {
  position: relative;
  padding-top: 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.competence-header {
  margin-bottom: 24px;
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.diff-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.diff-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.diff-num {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--color-accent);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.diff-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.diff-desc {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.65;
  word-break: keep-all;
}

/* ==========================================================================
   HOW WE WORK SECTION (#how-we-work)
   ========================================================================== */
.work-process-section {
  background: linear-gradient(180deg, var(--bg-primary) 0%, #0d0f15 100%);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.process-flow-wrap {
  width: 100%;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.process-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 22px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.process-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  background-color: var(--bg-card-hover);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.process-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.process-step-num {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  font-family: var(--font-sans);
  line-height: 1;
}

.process-step-arrow {
  font-size: 1.1rem;
  color: var(--text-dim);
  font-weight: 700;
  line-height: 1;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.process-card:hover .process-step-arrow {
  color: var(--color-accent-light);
  transform: translateX(4px);
}

.process-step-title {
  font-size: 1.22rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.process-step-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.62;
  word-break: keep-all;
}

/* ==========================================================================
   5. OWNED MEDIA SECTION (#media)
   ========================================================================== */
.media-section {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

/* Aggregate Network Stats Bar */
.media-stats-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, rgba(21, 24, 33, 0.95), rgba(15, 23, 42, 0.9));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px 40px;
  margin-bottom: 56px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.25);
}

.media-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
}

.media-stat-num {
  font-size: clamp(1.75rem, 2.6vw, 2.5rem);
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 6px;
}

.media-stat-num small {
  font-size: 0.55em;
  font-weight: 700;
  color: var(--color-accent-light);
  margin-left: 2px;
}

.media-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.media-stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border-color);
}

/* 5-1. Featured Flagship Box (부산정보통) */
.featured-media-box {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 72px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.3);
}

.featured-media-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), #60a5fa, transparent);
}

.featured-media-header {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 36px;
}

.featured-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.featured-pill {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  background-color: var(--color-accent);
  color: #ffffff;
  border-radius: var(--radius-sm);
}

.featured-location-tag {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-accent-light);
}

.featured-brand-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.featured-brand-identity {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  max-width: 680px;
}

.featured-brand-logo {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
  flex-shrink: 0;
}

.featured-brand-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.featured-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.featured-brand-name {
  font-size: 1.65rem;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.featured-follower-badge {
  font-size: 0.82rem;
  font-weight: 700;
  color: #60a5fa;
  background-color: rgba(37, 99, 235, 0.14);
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.featured-brand-desc {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.featured-channel-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.platform-link-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 8px 13px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.platform-link-chip:hover {
  color: #ffffff;
  border-color: var(--color-accent);
  background-color: rgba(37, 99, 235, 0.12);
  transform: translateY(-2px);
}

.platform-chip-icon {
  width: 15px;
  height: 15px;
  fill: currentColor;
  flex-shrink: 0;
}

/* Featured 4 Representative Contents */
.featured-contents-wrap {
  width: 100%;
}

.featured-contents-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 10px;
}

.featured-contents-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.featured-contents-sub {
  font-size: 0.84rem;
  color: var(--text-muted);
}

.contents-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.content-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
}

.content-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.4), 0 0 18px rgba(37, 99, 235, 0.15);
}

.content-thumb-container {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 16;
  overflow: hidden;
  background-color: #0b0c10;
}

.content-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.4s ease;
}

.content-card:hover .content-thumb {
  transform: scale(1.04);
}

.content-type-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 9px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
  z-index: 2;
  letter-spacing: 0.02em;
}

.badge-organic {
  background: rgba(16, 185, 129, 0.85);
  color: #ffffff;
}

.badge-ad {
  background: rgba(37, 99, 235, 0.88);
  color: #ffffff;
}

.badge-sponsor {
  background: rgba(168, 85, 247, 0.85);
  color: #ffffff;
}

.content-hover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 11, 14, 0.85) 0%, rgba(10, 11, 14, 0.2) 60%, transparent 100%);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 3;
}

.content-card:hover .content-hover-overlay {
  opacity: 1;
}

.view-post-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--color-accent);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

.inline-arrow {
  width: 14px;
  height: 14px;
  stroke: currentColor;
}

.content-info {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.content-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.content-desc-summary {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.4;
}

.content-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-top: auto;
  background: rgba(255, 255, 255, 0.02);
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.content-metric-item {
  display: flex;
  flex-direction: column;
}

.content-metric-item .metric-label {
  font-size: 0.68rem;
  color: var(--text-dim);
  font-weight: 600;
}

.content-metric-item .metric-val {
  font-size: 0.86rem;
  font-weight: 800;
  color: var(--text-secondary);
}

.content-metric-item.highlight-metric .metric-val {
  color: var(--color-accent-light);
  font-size: 0.94rem;
}

/* 5-2. Regional Media Network (20 Distinct Brands) */
.regional-network-section {
  margin-top: 32px;
}

.regional-network-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 24px;
  flex-wrap: wrap;
}

.regional-network-title {
  font-size: clamp(1.4rem, 2.2vw, 1.85rem);
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin-top: 4px;
  margin-bottom: 6px;
}

.regional-network-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* Filter Tabs */
.media-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.media-tab-btn {
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.media-tab-btn:hover {
  color: var(--text-main);
  border-color: var(--border-light);
}

.media-tab-btn.active {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

/* Collapsible Channel Cards Wrap */
.channel-cards-collapse-wrap {
  width: 100%;
}

/* Toggle Buttons Wrap - Hidden on Desktop */
.channel-toggle-wrap {
  display: none;
}

.btn-channel-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  padding: 14px 28px;
  min-height: 52px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: -0.01em;
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transition: all var(--transition-fast);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn-channel-toggle:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  border-color: rgba(255, 255, 255, 0.4);
  color: #ffffff;
  box-shadow: 0 6px 22px rgba(37, 99, 235, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.btn-channel-toggle:focus-visible {
  outline: 2px solid var(--color-accent-light);
  outline-offset: 3px;
}

.btn-channel-toggle:active {
  transform: scale(0.98);
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.45);
}

/* Expanded State for Top Button */
.btn-channel-toggle[aria-expanded="true"] {
  background: rgba(37, 99, 235, 0.22);
  border: 1.5px solid var(--color-accent-light);
  color: #ffffff;
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.3), inset 0 0 14px rgba(37, 99, 235, 0.15);
}

.btn-channel-toggle[aria-expanded="true"]:hover {
  background: rgba(37, 99, 235, 0.3);
  border-color: #60a5fa;
  box-shadow: 0 0 24px rgba(37, 99, 235, 0.45);
}

/* Bottom Button Style */
.btn-channel-toggle-bottom {
  background: rgba(37, 99, 235, 0.18);
  border: 1.5px solid var(--color-accent-light);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
}

.btn-channel-toggle-bottom:hover {
  background: var(--color-accent);
  border-color: #60a5fa;
  color: #ffffff;
  box-shadow: 0 6px 22px rgba(37, 99, 235, 0.45);
  transform: translateY(-1px);
}

/* Channel Cards Grid */
.channel-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.channel-card:hover {
  border-color: var(--border-light);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
  background: var(--bg-card-hover);
}

.channel-card-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.channel-card-logo {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background-color: var(--bg-primary);
  flex-shrink: 0;
}

.channel-card-header-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.channel-badges-line {
  display: flex;
  align-items: center;
  gap: 6px;
}

.region-tag {
  font-size: 0.7rem;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.02em;
}

.region-busan {
  background: rgba(37, 99, 235, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(37, 99, 235, 0.3);
}

.region-jeju {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.region-seoul {
  background: rgba(168, 85, 247, 0.15);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.region-daegu {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.region-kyungsangdo,
.region-gyeongsang {
  background: rgba(20, 184, 166, 0.15);
  color: #2dd4bf;
  border: 1px solid rgba(20, 184, 166, 0.3);
}

.role-tag {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.04);
  padding: 2px 6px;
  border-radius: 4px;
}

.channel-card-name {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.channel-card-followers {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.follower-lead {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.follower-count {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.follower-count small {
  font-size: 0.65em;
  font-weight: 700;
  color: var(--color-accent-light);
  margin-left: 1px;
}

.channel-card-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
  min-height: 38px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.channel-platform-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: auto;
}

.platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-primary);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 4px 8px;
  border-radius: 4px;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.platform-badge:hover {
  color: #ffffff;
  border-color: var(--color-accent);
  background: rgba(37, 99, 235, 0.15);
  transform: translateY(-1px);
}

.platform-badge .icon-svg {
  width: 12px;
  height: 12px;
  fill: currentColor;
  flex-shrink: 0;
}

/* Infinite Marquee Strip */
.marquee-container {
  overflow: hidden;
  position: relative;
  width: 100%;
  margin-top: 56px;
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-primary);
}

.marquee-container::before,
.marquee-container::after {
  content: '';
  position: absolute;
  top: 0;
  width: 120px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.marquee-container::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-primary), transparent);
}

.marquee-container::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-primary), transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marqueeScroll 35s linear infinite;
}

.marquee-track:hover {
  animation-play-state: paused;
}

.marquee-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 30px;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.marquee-item strong {
  color: var(--text-main);
  font-weight: 700;
}

.marquee-item:hover {
  color: var(--color-accent-light);
}

.marquee-dot {
  font-size: 0.5rem;
  color: var(--color-accent);
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Responsive Media Queries */
@media (max-width: 1140px) {
  .channel-cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .contents-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .channel-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .media-stats-bar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    padding: 24px;
  }
  .media-stat-divider {
    display: none;
  }
  .featured-media-box {
    padding: 28px;
  }
}

@media (max-width: 600px) {
  .contents-grid {
    grid-template-columns: 1fr;
  }
  .channel-cards-grid {
    grid-template-columns: 1fr;
  }
  .media-stats-bar {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .featured-brand-row {
    flex-direction: column;
    gap: 20px;
  }
  .featured-brand-identity {
    flex-direction: column;
    align-items: flex-start;
  }
  .regional-network-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .media-tabs {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 8px;
    flex-wrap: nowrap;
  }
  .media-tab-btn {
    white-space: nowrap;
    flex-shrink: 0;
  }
}

/* ==========================================================================
   6. SERVICE SECTION (#services)
   ========================================================================== */
.services-section {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.services-desc-br {
  display: inline;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch;
}

.service-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 34px 28px;
  display: flex;
  flex-direction: column;
  min-height: auto;
  height: 100%;
  transition: all var(--transition-fast);
}

.service-card:hover {
  border-color: var(--color-accent);
  background-color: var(--bg-card-hover);
  transform: translateY(-4px);
}

.service-card-header {
  margin-bottom: 0;
}

.service-num {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

.service-title {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
  letter-spacing: -0.025em;
  line-height: 1.32;
  word-break: keep-all;
}

.service-details {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.65;
  word-break: keep-all;
}

.service-details .service-desc-p {
  display: block;
  margin-bottom: 11px;
}

.service-details .service-desc-p:last-child {
  margin-bottom: 0;
}

/* Service Card Feature Groups (Service 01 & Service 02) */
.service-feature-group {
  margin-top: 16px;
}

.service-feature-heading {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent-light);
  letter-spacing: -0.01em;
  margin-bottom: 9px;
}

.service-feature-heading::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* Service 01: 4 vertical channel boxes */
.service-channel-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.service-channel-item {
  font-size: 0.84rem;
  font-weight: 500;
  color: #cbd5e1;
  background-color: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  line-height: 1.4;
  word-break: keep-all;
  transition: all var(--transition-fast);
}

.service-card:hover .service-channel-item {
  border-color: rgba(0, 102, 255, 0.25);
  background-color: rgba(0, 102, 255, 0.03);
}

.channel-item-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-channel-title {
  display: inline-block;
  font-size: 0.84rem;
  font-weight: 600;
  color: #cbd5e1;
  line-height: 1.4;
}

.service-channel-item .channel-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 20px;
  box-sizing: border-box;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-accent-light);
  background: rgba(0, 102, 255, 0.12);
  border: 1px solid rgba(0, 102, 255, 0.25);
  border-radius: 4px;
  padding: 0 5px;
  line-height: 1;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.service-channel-desc {
  font-size: 0.75rem;
  font-weight: 400;
  color: #94a3b8;
  margin-top: 3px;
  line-height: 1.4;
  word-break: keep-all;
  margin-left: 10px;
}

.service-channel-item.has-step .service-channel-desc {
  margin-left: 45px;
}

.service-card:hover .service-channel-item .service-channel-title {
  color: #ffffff;
}

/* Service 03: Process steps */
.service-process-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-process-item {
  background-color: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  line-height: 1.4;
  word-break: keep-all;
  transition: all var(--transition-fast);
}

.service-card:hover .service-process-item {
  border-color: rgba(0, 102, 255, 0.25);
  background-color: rgba(0, 102, 255, 0.03);
}

.service-process-item .process-item-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 5px;
}

.service-process-item .process-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 20px;
  box-sizing: border-box;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-accent-light);
  background: rgba(0, 102, 255, 0.12);
  border: 1px solid rgba(0, 102, 255, 0.25);
  border-radius: 4px;
  padding: 0 5px;
  line-height: 1;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.service-process-item .process-step-title {
  font-size: 0.84rem;
  font-weight: 600;
  color: #e2e8f0;
  line-height: 1.35;
  margin: 0;
}

.service-process-item .process-step-desc {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  line-height: 1.45;
  margin: 0;
  word-break: keep-all;
}

/* 설명문 시작선: 단계 번호가 있을 때 제목 시작선에 맞춰 정렬 (badge 24px + gap 8px = 32px) */
.service-process-item.has-step .process-step-desc {
  margin-left: 32px;
}

/* Service 02: wrapping category boxes */
.service-category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.service-category-item {
  font-size: 0.82rem;
  font-weight: 500;
  color: #cbd5e1;
  background-color: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  line-height: 1.4;
  white-space: nowrap;
  word-break: keep-all;
  transition: all var(--transition-fast);
}

.service-card:hover .service-category-item {
  border-color: rgba(0, 102, 255, 0.25);
  background-color: rgba(0, 102, 255, 0.03);
}

.service-methods {
  margin-top: 16px;
  padding: 12px 14px;
  background-color: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.service-method-item {
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--text-secondary);
  word-break: keep-all;
}

.method-title {
  color: var(--text-main);
  font-weight: 700;
  margin-right: 4px;
}

.method-desc {
  color: #cbd5e1;
}

.service-notice {
  margin-top: 12px;
  font-size: 0.83rem;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  line-height: 1.45;
  word-break: keep-all;
}

.notice-mark {
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

.notice-text {
  color: #94a3b8;
  font-weight: 600;
}

.service-card-footer {
  margin-top: 24px;
  padding-top: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.service-tag,
.service-scope-pill {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: rgba(255, 255, 255, 0.04);
  padding: 5px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  line-height: 1.4;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.service-card:hover .service-tag,
.service-card:hover .service-scope-pill {
  color: var(--color-accent-light);
  border-color: var(--color-accent-border);
  background-color: rgba(0, 102, 255, 0.06);
}

/* ==========================================================================
   8. 고객 적합성 SECTION (#fit)
   ========================================================================== */
.fit-section {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.fit-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.fit-checklist {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.fit-check-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  transition: all var(--transition-fast);
}

.fit-check-item:hover {
  border-color: var(--color-accent);
  background-color: var(--bg-card-hover);
  transform: translateX(6px);
}

.fit-check-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--color-accent-bg);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.fit-check-text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

/* ==========================================================================
   9. INSIGHT SECTION (#insight)
   ========================================================================== */
.insight-section {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.insight-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all var(--transition-fast);
}

.insight-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.insight-thumb {
  height: 180px;
  background-color: #1a1e28;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  position: relative;
}

.insight-tag-pill {
  position: absolute;
  top: 16px;
  left: 16px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  background-color: rgba(10, 11, 14, 0.85);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.insight-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-grow: 1;
}

.insight-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.4;
  margin-bottom: 12px;
}

.insight-snippet {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
}

.insight-date {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.insight-more-wrap {
  text-align: center;
}

.insight-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-accent);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-accent-border);
  background-color: var(--color-accent-bg);
  transition: all var(--transition-fast);
}

.insight-more-btn:hover {
  background-color: var(--color-accent);
  color: var(--text-main);
  transform: translateY(-2px);
}

/* ==========================================================================
   10. 마지막 CTA (#final-cta)
   ========================================================================== */
.final-cta-section {
  background-color: var(--bg-cta);
  border-bottom: 1px solid var(--border-color);
  padding: 120px 0;
  text-align: center;
}

.final-cta-inner {
  max-width: 860px;
  margin: 0 auto;
}

.final-cta-title {
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  font-weight: 900;
  line-height: 1.25;
  color: var(--text-main);
  letter-spacing: -0.035em;
  margin-bottom: 24px;
}

.final-cta-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 40px;
}

/* ==========================================================================
   11. CONTACT SECTION (#contact)
   ========================================================================== */
.contact-section {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.contact-card {
  max-width: 880px;
  margin: 0 auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px 44px;
}

.contact-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 4px;
}

.form-required {
  color: #ef4444;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 14px 16px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--border-focus);
}

.form-select {
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

/* Checkbox & Radio Option Groups */
.options-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.options-radio-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.custom-option-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.custom-option-label:hover {
  border-color: var(--border-light);
  color: var(--text-main);
}

.custom-option-label input {
  accent-color: var(--color-accent);
  cursor: pointer;
}

.custom-option-label:has(input:checked) {
  border-color: var(--color-accent);
  background-color: var(--color-accent-bg);
  color: var(--text-main);
}

.form-submit-btn {
  width: 100%;
  padding: 18px;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

/* ==========================================================================
   FOOTER (우측 하단 미니멀 레이아웃)
   ========================================================================== */
.footer {
  background-color: var(--bg-primary);
  padding: 48px 0;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.86rem;
}

.footer-content {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

#footer .brand-logo,
.footer .brand-logo {
  margin-bottom: 24px;
}

#footer .brand-logo img,
.footer .brand-logo img {
  width: 42px;
  height: auto;
  margin-right: 10px !important;
  background: transparent !important;
}

#footer .brand-logo-text strong,
.footer .brand-logo-text strong {
  font-size: 24px;
  color: #FFFFFF;
}

#footer .brand-logo-text span,
.footer .brand-logo-text span {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.7);
}

.footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  text-align: right;
}

.footer-business-info {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.footer-info-group {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
}

.footer-info-item {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.footer-info-item:not(:last-child)::after {
  content: '/';
  margin: 0 10px;
  color: rgba(255, 255, 255, 0.22);
  font-weight: 300;
  user-select: none;
}

.footer-info-group:not(:last-child)::after {
  content: '/';
  margin: 0 10px;
  color: rgba(255, 255, 255, 0.22);
  font-weight: 300;
  user-select: none;
}

.footer-address {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ==========================================================================
   INTERACTION & ANIMATION (Fade-up & Modal)
   ========================================================================== */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 440px;
  width: 100%;
  padding: 40px 32px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-backdrop.active .modal-content {
  transform: scale(1);
}

.modal-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-accent-bg);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px auto;
}

.modal-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
}

.modal-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 28px;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS (Mobile First)
   ========================================================================== */
@media (max-width: 1024px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric-card:nth-child(2) {
    border-right: none;
  }

  .about-hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 56px;
  }

  .about-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .diff-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .process-card.is-final-step {
    grid-column: span 1;
  }

  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    align-items: stretch;
  }

  .service-card {
    min-height: auto;
    height: 100%;
  }

  .fit-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .insight-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .options-radio-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .brand-logo {
    gap: 10px;
  }

  .brand-logo img {
    width: 40px;
    margin: 0;
  }

  .brand-logo-text strong {
    font-size: 24px;
  }

  .brand-logo-text span {
    font-size: 10px;
  }

  .hero-section {
    background-image: 
      linear-gradient(180deg, rgba(5, 11, 20, 0.8) 0%, transparent 22%, transparent 80%, rgba(5, 11, 20, 0.95) 100%),
      linear-gradient(to right, rgba(5, 11, 20, 1) 0%, rgba(5, 11, 20, 1) 34%, rgba(5, 11, 20, 0.82) 56%, rgba(5, 11, 20, 0.2) 100%),
      url('../images/c0393339-38ea-4b4d-b43d-eb3679977c1f.png');
    background-position: center right;
    background-size: cover;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 85px 0;
  }

  .brand-logo {
    max-width: calc(100% - 60px);
    gap: 8px;
  }

  .brand-logo img {
    width: 38px;
    margin: 0;
  }

  .brand-logo-text strong {
    font-size: 20px;
  }

  .brand-logo-text span {
    font-size: 8.5px;
    letter-spacing: 0.12em;
    white-space: nowrap;
  }

  #footer .brand-logo {
    margin-bottom: 18px;
  }

  #footer .brand-logo img,
  .footer .brand-logo img {
    width: 32px;
    margin: 0;
  }

  #footer .brand-logo-text strong,
  .footer .brand-logo-text strong {
    font-size: 18px;
  }

  #footer .brand-logo-text span,
  .footer .brand-logo-text span {
    font-size: 8px;
  }

  .hero-section {
    background-image: 
      linear-gradient(180deg, rgba(5, 11, 20, 0.98) 0%, rgba(5, 11, 20, 0.90) 45%, rgba(5, 11, 20, 0.96) 100%),
      url('../images/hero/brainworks-hero.webp');
    background-position: 70% center;
    background-size: cover;
  }

  .nav-menu, .header-cta-wrap .btn {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .metrics-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .metric-card {
    padding: 16px 8px;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .about-title-br,
  .about-desc-br {
    display: none;
  }

  .about-hero-grid {
    gap: 32px;
    margin-bottom: 44px;
  }

  .about-headline {
    font-size: 1.6rem;
    line-height: 1.35;
  }

  .about-desc {
    font-size: 0.95rem;
  }

  .about-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .about-stat-card {
    padding: 20px 18px;
  }

  .about-stat-number {
    font-size: 1.6rem;
  }

  .about-stat-number.founded-number {
    font-size: 1.35rem;
  }

  .about-competence-wrap {
    padding-top: 36px;
  }

  .diff-grid {
    grid-template-columns: 1fr;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .process-card {
    padding: 24px 20px;
  }

  .process-card-top {
    margin-bottom: 12px;
  }

  .process-step-num {
    font-size: 1.15rem;
  }

  .process-step-arrow {
    display: inline-block;
    transform: rotate(90deg);
    font-size: 1rem;
    color: var(--color-accent);
  }

  .process-card:hover .process-step-arrow {
    transform: rotate(90deg) translateX(3px);
  }

  .process-card.is-final-step .process-step-arrow {
    display: none;
  }

  .process-step-title {
    font-size: 1.15rem;
    margin-bottom: 8px;
  }

  .process-step-desc {
    font-size: 0.91rem;
    line-height: 1.6;
  }

  /* BRAND SHOWREEL Mobile */
  .showreel-video-wrapper {
    aspect-ratio: 16 / 9;
    max-height: 440px;
  }

  .showreel-video-container {
    border-radius: var(--radius-md);
  }

  .contact-card {
    padding: 32px 20px;
  }

  .contact-form-grid {
    grid-template-columns: 1fr;
  }

  .options-grid {
    grid-template-columns: 1fr 1fr;
  }

  .options-radio-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-right {
    align-items: flex-start;
    text-align: left;
  }

  .footer-business-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .footer-info-group:not(:last-child)::after {
    display: none;
  }

  /* OWNED MEDIA Mobile Collapsible Channels */
  .regional-network-header {
    margin-bottom: 20px;
  }

  .channel-toggle-top-wrap {
    display: flex;
    justify-content: center;
    margin-top: 4px;
    margin-bottom: 0;
    width: 100%;
  }

  .btn-channel-toggle {
    width: 100%;
    max-width: 340px;
  }

  .channel-cards-collapse-wrap {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    visibility: hidden;
    pointer-events: none;
    margin-top: 0;
    transition: max-height 0.32s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.28s ease, margin-top 0.32s ease, visibility 0s 0.32s;
  }

  .channel-cards-collapse-wrap.is-expanded {
    max-height: 9000px;
    opacity: 1;
    overflow: visible;
    visibility: visible;
    pointer-events: auto;
    margin-top: 24px;
    transition: max-height 0.32s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.28s ease, margin-top 0.32s ease, visibility 0s 0s;
  }

  .channel-toggle-bottom-wrap {
    display: none;
    justify-content: center;
    margin-top: 28px;
    margin-bottom: 8px;
    width: 100%;
  }

  .channel-cards-collapse-wrap.is-expanded .channel-toggle-bottom-wrap {
    display: flex;
  }

  .marquee-container {
    margin-top: 36px;
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .brand-logo {
    max-width: calc(100% - 50px);
    gap: 7px;
  }

  .brand-logo img {
    width: 34px;
    margin: 0;
  }

  .brand-logo-text strong {
    font-size: 17px;
  }

  .brand-logo-text span {
    font-size: 7.8px;
    letter-spacing: 0.08em;
    white-space: nowrap;
  }

  .about-stats-grid {
    gap: 10px;
  }

  .about-stat-card {
    padding: 16px 14px;
  }

  .about-stat-number {
    font-size: 1.35rem;
  }

  .about-stat-number.founded-number {
    font-size: 1.15rem;
  }

  .about-stat-label {
    font-size: 0.8rem;
  }

  .about-stat-sub {
    font-size: 0.72rem;
  }

  .metric-number-wrap {
    font-size: 1.75rem;
  }

  .metric-wrap-text {
    font-size: 1.15rem;
  }

  .metric-unit-text {
    font-size: 0.5em;
  }

  .metric-title {
    font-size: 0.88rem;
  }

  .metric-sub {
    font-size: 0.75rem;
  }
}

@media (max-width: 767px) {
  .services-desc-br {
    display: none;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    align-items: start;
  }

  .service-card {
    min-height: auto;
    height: auto;
    padding: 26px 20px;
  }

  .service-title {
    font-size: 1.38rem;
    margin-bottom: 12px;
  }

  .insight-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (max-width: 360px) {
  .footer-info-group-business {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .footer-info-group-business .footer-info-item:not(:last-child)::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .channel-cards-collapse-wrap {
    transition: none !important;
  }

  .btn-channel-toggle {
    transition: none !important;
  }
}

/* ==========================================================================
   SUBPAGE COMMON HERO & LAYOUT
   ========================================================================== */
.subpage-hero {
  padding-top: calc(var(--header-height) + 54px);
  padding-bottom: 50px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.subpage-hero-inner {
  max-width: 820px;
  margin: 0 auto;
}

.subpage-tag {
  display: inline-block;
  font-size: clamp(1.15rem, 1.5vw, 1.375rem);
  font-weight: 800;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.3;
  margin-bottom: 14px;
}

.subpage-title {
  font-size: clamp(2rem, 3.8vw, 2.9rem);
  font-weight: 900;
  color: var(--text-main);
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
}

.subpage-desc {
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.68;
}

/* ==========================================================================
   SERVICES DEDICATED HERO (services.html)
   ========================================================================== */
.services-hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: calc(var(--header-height) + 64px);
  padding-bottom: 72px;
  background-color: #020617;
  border-bottom: 1px solid var(--border-color);
  text-align: center;
  overflow: hidden;
}

.services-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  z-index: 0;
  display: block;
  pointer-events: none;
}

.services-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(
      ellipse 28% 34% at 50% 47%,
      rgba(2, 6, 23, 0.24) 0%,
      rgba(2, 6, 23, 0.12) 55%,
      transparent 82%
    );
}

.services-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(2, 6, 23, 0.05) 0%,
    rgba(2, 6, 23, 0.10) 60%,
    rgba(2, 6, 23, 0.80) 100%
  );
}

.services-hero .container,
.services-hero-inner {
  position: relative;
  z-index: 2;
}

.services-hero-inner {
  max-width: 820px;
  margin: 0 auto;
}

.services-hero .section-subhead {
  display: inline-block;
  font-size: clamp(1.2rem, 1.55vw, 1.45rem);
  font-weight: 900;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  line-height: 1.3;
  margin-bottom: 14px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.55), 0 0 14px rgba(37, 99, 235, 0.35);
}

.services-hero-title {
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  font-weight: 900;
  color: #ffffff;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.75);
}

.services-hero-desc {
  font-size: clamp(1.02rem, 1.3vw, 1.15rem);
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.72;
  font-weight: 500;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.55);
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .services-hero {
    min-height: 480px;
    padding-top: calc(var(--header-height) + 52px);
    padding-bottom: 60px;
  }
}

@media (max-width: 768px) {
  .services-hero-bg {
    display: none;
  }

  .services-hero::before {
    display: none;
  }

  .services-hero::after {
    display: none;
  }

  .services-hero {
    min-height: 400px;
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 48px;
    background: #020617;
  }

  .services-hero .services-desc-br {
    display: none;
  }
}

@media (max-width: 480px) {
  .services-hero {
    min-height: 380px;
    padding-top: calc(var(--header-height) + 32px);
    padding-bottom: 40px;
  }
}

.subpage-blog-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.blog-direct-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.blog-direct-link:hover {
  background: rgba(37, 99, 235, 0.12);
  border-color: var(--color-accent);
  color: var(--text-main);
  transform: translateY(-2px);
}

/* Subpage Bottom CTA Banner */
.subpage-cta-banner {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, #0c1222 100%);
  border-top: 1px solid var(--border-color);
  padding: 72px 0;
  text-align: center;
}

/* Media Page Specific (no collapse toggle needed as Busan is default filter) */
.media-page .channel-cards-collapse-wrap {
  max-height: none !important;
  opacity: 1 !important;
  overflow: visible !important;
  visibility: visible !important;
  pointer-events: auto !important;
  margin-top: 24px;
}

.media-page .channel-toggle-wrap {
  display: none !important;
}

.subpage-cta-inner {
  max-width: 680px;
  margin: 0 auto;
}

.subpage-cta-title {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
  line-height: 1.35;
}

.subpage-cta-desc {
  font-size: 1.02rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.6;
}

/* ==========================================================================
   MAIN PAGE PREVIEW CARDS (index.html)
   ========================================================================== */
.main-preview-section {
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 96px 0;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.preview-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 38px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.preview-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.preview-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-border);
  background-color: var(--bg-card-hover);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
}

.preview-card:hover::before {
  opacity: 1;
}

.preview-card-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.preview-card-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
  line-height: 1.35;
}

.preview-card-desc {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.preview-card-highlight {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.preview-pill {
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.preview-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-accent-light);
  transition: all var(--transition-fast);
  margin-top: auto;
}

.preview-card:hover .preview-card-link {
  color: #60a5fa;
  transform: translateX(4px);
}

/* ==========================================================================
   INSIGHTS PAGE STYLES (insights.html)
   ========================================================================== */
.insights-section {
  padding: 64px 0 96px;
  background-color: var(--bg-primary);
}

.insights-filter-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 44px;
}

.insight-tabs {
  display: inline-flex;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 4px;
  gap: 4px;
  max-width: 100%;
  overflow-x: auto;
}

.insight-tab-btn {
  padding: 9px 22px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.insight-tab-btn.active, .insight-tab-btn:hover {
  background-color: var(--color-accent);
  color: var(--text-main);
}

.insight-tab-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-bottom: 48px;
}

.insight-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
}

.insight-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-border);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45);
}

.insight-thumb-wrap,
.insight-thumb-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #0d1017;
  overflow: hidden;
}

.insight-thumb-img,
.insight-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.insight-card:hover .insight-thumb-img,
.insight-card:hover .insight-thumb {
  transform: scale(1.05);
}

.insight-thumb.fallback-thumb {
  object-fit: contain;
  padding: 30px;
  background: #11141c;
}

.insight-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #10141d 0%, #171d2b 100%);
  color: var(--color-accent);
}

.insight-card-body,
.insight-body {
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.insight-card-meta,
.insight-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.insight-blog-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  z-index: 2;
  backdrop-filter: blur(8px);
}

.badge-bw {
  background: rgba(10, 20, 45, 0.85);
  color: #60a5fa;
  border: 1px solid rgba(37, 99, 235, 0.5);
}

.badge-busan {
  background: rgba(8, 30, 22, 0.85);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.5);
}

.insight-date {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.insight-category {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.insight-card-title,
.insight-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.45;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.insight-title a {
  color: var(--text-main);
  transition: color var(--transition-fast);
}

.insight-card:hover .insight-title,
.insight-card:hover .insight-title a {
  color: var(--color-accent-light);
}

.insight-card-summary,
.insight-desc,
.insight-snippet {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.58;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.insight-card-footer,
.insight-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-accent-light);
}

.insight-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-accent-light);
  transition: all var(--transition-fast);
}

.insight-card:hover .insight-link-btn {
  color: #93c5fd;
  transform: translateX(3px);
}

.insights-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 16px;
}

.btn-load-more {
  padding: 13px 32px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-load-more:hover {
  border-color: var(--color-accent);
  background-color: rgba(37, 99, 235, 0.1);
  transform: translateY(-2px);
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 1rem;
  grid-column: 1 / -1;
}

/* ==========================================================================
   RESPONSIVE ENHANCEMENTS FOR MULTI-PAGE
   ========================================================================== */
@media (max-width: 991px) {
  .insights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-section {
    min-height: 80vh;
    padding-top: calc(var(--header-height) + 36px);
    padding-bottom: 60px;
    background-position: 70% center;
    background-image: 
      linear-gradient(180deg, rgba(5, 11, 20, 0.75) 0%, rgba(5, 11, 20, 0.65) 50%, rgba(5, 11, 20, 0.92) 100%),
      url('../images/c0393339-38ea-4b4d-b43d-eb3679977c1f.png');
  }

  .subpage-hero {
    padding-top: calc(var(--header-height) + 36px);
    padding-bottom: 38px;
  }

  .preview-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .insights-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .mobile-drawer .nav-link.active {
    color: var(--color-accent);
    font-weight: 700;
  }
}

@media (min-width: 769px) and (max-width: 940px) {
  .nav-menu {
    gap: 16px;
  }
  .nav-link {
    font-size: 0.88rem;
  }
}

/* ==========================================================================
   KAKAO BUTTON & INQUIRY STYLES
   ========================================================================== */
.btn-kakao {
  background-color: #fee500;
  color: #191919;
  border-color: #fee500;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-kakao:hover {
  background-color: #fada0a;
  border-color: #fada0a;
  color: #191919;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(254, 229, 0, 0.25);
}

.kakao-icon {
  flex-shrink: 0;
}

.footer-kakao-link {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.footer-kakao-link:hover {
  color: #fee500;
}

/* ==========================================================================
   CONTACT HUB STYLES (contact.html)
   ========================================================================== */
.contact-hub-section {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 100px;
  min-height: calc(100vh - 280px);
  display: flex;
  align-items: center;
}

.contact-hub-card {
  max-width: 680px;
  margin: 0 auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4);
}

.contact-hub-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-top: 16px;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.contact-hub-desc {
  font-size: 1.12rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.contact-hub-action {
  margin-bottom: 36px;
}

.contact-hub-action .btn-kakao {
  padding: 18px 42px;
  font-size: 1.15rem;
  border-radius: var(--radius-md);
}

.contact-hub-notice {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
}

.notice-badge {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  color: #fee500;
  background-color: rgba(254, 229, 0, 0.1);
  border: 1px solid rgba(254, 229, 0, 0.25);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.notice-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0;
}

@media (max-width: 768px) {
  .contact-hub-section {
    padding-top: calc(var(--header-height) + 32px);
    padding-bottom: 60px;
  }

  .contact-hub-card {
    padding: 40px 24px;
  }

  .contact-hub-title {
    font-size: 1.65rem;
  }

  .contact-hub-desc {
    font-size: 0.98rem;
    margin-bottom: 32px;
  }

  .contact-hub-action .btn-kakao {
    width: 100%;
    padding: 16px 24px;
    font-size: 1.05rem;
  }
}

/* ==========================================================================
   HOME TAB PANELS SPA SWITCHING SYSTEM
   ========================================================================== */
.home-main-content {
  width: 100%;
  position: relative;
  min-height: calc(100vh - var(--header-height) - 180px);
}

.home-tab-panel {
  display: none;
  width: 100%;
}

.home-tab-panel.active {
  display: block;
  animation: homeTabFade 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes homeTabFade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Adjust top padding for sub-panels without Hero */
.home-tab-panel:not([data-panel="about"]) .section-padding:first-child {
  padding-top: calc(var(--header-height) + 48px);
}

.panel-more-cta-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
}

@media (max-width: 768px) {
  .home-tab-panel:not([data-panel="about"]) .section-padding:first-child {
    padding-top: calc(var(--header-height) + 32px);
  }
}

/* Accessibility: prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .home-tab-panel.active {
    animation: none;
  }
}

/* ==========================================================================
   PORTFOLIO GLOBAL VISIBILITY (Default: Hidden / Fail-Closed)
   - Initial state: Hidden before JS execution (Zero FOUC on reload)
   - Enabled state: When body.portfolio-enabled is set after confirmed true
   ========================================================================== */
[data-portfolio-visibility] {
  display: none;
}

body.portfolio-enabled .nav-menu li[data-portfolio-visibility="desktop"] {
  display: list-item;
}

body.portfolio-enabled .mobile-drawer [data-portfolio-visibility="mobile"] {
  display: block;
}

body.portfolio-enabled .home-tab-panel[data-portfolio-visibility="panel"] {
  display: none;
}

body.portfolio-enabled .home-tab-panel[data-portfolio-visibility="panel"].active {
  display: block;
}

/* ==========================================================================
   PORTFOLIO SECTION (#portfolio) & CARDS & LIGHTBOX MODAL
   ========================================================================== */
.portfolio-section {
  width: 100%;
}

/* Filter Tabs */
.portfolio-filter-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 52px; /* Desktop: 48~56px (권장 52px) */
}

.portfolio-tabs {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 23, 42, 0.7);
  padding: 6px;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.portfolio-tab-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.portfolio-tab-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.portfolio-tab-btn.active {
  background: #2563eb;
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.4);
}

.portfolio-tab-btn:focus-visible {
  outline: 2px solid #60a5fa;
  outline-offset: 2px;
}

/* Portfolio Gallery Wrapper & Group Sections */
.portfolio-gallery-wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 68px; /* Desktop: 64~72px (권장 68px) */
}

.portfolio-group-section {
  width: 100%;
}

.portfolio-group-header {
  margin-bottom: 24px; /* 서브 문구 -> 카드 그리드 간격: 24px (22~28px 권장) */
}

.portfolio-group-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px; /* 섹션 제목 -> 서브 문구 간격: 8px (6~8px 권장) */
}

.portfolio-group-accent-line {
  display: inline-block;
  width: 4px;
  height: 18px;
  background: #2563eb;
  border-radius: 9999px;
  box-shadow: 0 0 10px rgba(37, 99, 235, 0.6);
}

.portfolio-group-title {
  font-size: clamp(1.3rem, 1.5vw, 1.6rem);
  font-weight: 800;
  color: #f8fafc;
  margin: 0;
  letter-spacing: -0.01em;
}

.portfolio-group-desc {
  font-size: 0.95rem;
  color: rgba(203, 213, 225, 0.72);
  margin: 0 0 0 14px;
  line-height: 1.45;
}

/* Landscape Grid (Desktop: 3열, 카드 폭 360~420px, gap 24~28px) */
.portfolio-grid-landscape {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
  width: 100%;
  align-items: stretch;
}

/* Portrait Grid (Desktop: 4열 균등 배분, 24px gap, 가로형 3열과 좌우 외곽선 일치) */
.portfolio-grid-portrait {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  width: 100%;
  align-items: stretch;
}

/* Portfolio Card Common */
.portfolio-card {
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  width: 100%;
}

/* Card Hover */
.portfolio-card:hover {
  transform: translateY(-3px);
  border-color: rgba(59, 130, 246, 0.35);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}

/* Landscape Card Specific */
.portfolio-card.aspect-landscape {
  width: 100%;
  max-width: 100%;
}

.portfolio-card.aspect-landscape .portfolio-card-media {
  aspect-ratio: 16 / 9;
}

/* Portrait Card Specific (Desktop: 4열 그리드 셀에 맞춰 100% 채움, 9:16 비율) */
.portfolio-card.aspect-portrait {
  width: 100%;
  max-width: 100%;
}

.portfolio-card.aspect-portrait .portfolio-card-media {
  aspect-ratio: 9 / 16;
}

/* Card Media Container */
.portfolio-card-media {
  position: relative;
  width: 100%;
  background: #020617;
  overflow: hidden;
  cursor: pointer;
  display: block;
}

.portfolio-card-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.portfolio-card:hover .portfolio-card-thumb {
  transform: scale(1.03);
}

/* Play Overlay & Button */
.portfolio-media-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease;
}

.portfolio-card:hover .portfolio-media-overlay {
  background: rgba(0, 0, 0, 0.42);
}

.portfolio-play-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.88);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.45);
  transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.portfolio-card:hover .portfolio-play-btn {
  transform: scale(1.08);
  background: #2563eb;
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.65);
}

.portfolio-play-btn svg {
  margin-left: 2px;
}

/* Badges (컴팩트 padding & font-size) */
.portfolio-card-badges {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 2;
}

.portfolio-badge {
  font-size: 0.76rem;
  font-weight: 700;
  padding: 5px 9px;
  border-radius: 9999px;
  letter-spacing: 0.02em;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.portfolio-badge.badge-landscape {
  background: rgba(37, 99, 235, 0.85);
  color: #ffffff;
  border: 1px solid rgba(96, 165, 250, 0.6);
}

.portfolio-badge.badge-portrait {
  background: rgba(147, 51, 234, 0.85);
  color: #ffffff;
  border: 1px solid rgba(192, 132, 252, 0.6);
}

.portfolio-badge.badge-source {
  background: rgba(15, 23, 42, 0.78);
  color: #e2e8f0;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Card Body - 가로형 (min-height 정리로 행별 높이 일치) */
.portfolio-card.aspect-landscape .portfolio-card-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  min-height: 116px;
}

.portfolio-card.aspect-landscape .portfolio-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin: 0;
  word-break: keep-all;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.portfolio-card.aspect-landscape .portfolio-card-desc {
  font-size: 0.88rem;
  color: rgba(203, 213, 225, 0.72);
  line-height: 1.5;
  margin: 8px 0 0;
  word-break: keep-all;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Card Body - 세로형 (컴팩트 padding 16~18px, min-height 정리로 같은 행 카드 정렬 통일) */
.portfolio-card.aspect-portrait .portfolio-card-body {
  padding: 16px 16px 18px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  min-height: 114px; /* 권장: 약 108~120px 범위 */
}

.portfolio-card.aspect-portrait .portfolio-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin: 0;
  word-break: keep-all;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.portfolio-card.aspect-portrait .portfolio-card-desc {
  font-size: 0.86rem;
  color: rgba(203, 213, 225, 0.72);
  line-height: 1.5;
  margin: 8px 0 0;
  word-break: keep-all;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Empty State */
.portfolio-empty-state {
  width: 100%;
  text-align: center;
  padding: 64px 24px;
  background: rgba(15, 23, 42, 0.4);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 16px;
}

.portfolio-empty-state .empty-icon {
  font-size: 2.8rem;
  margin-bottom: 14px;
}

.portfolio-empty-state h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 8px;
}

.portfolio-empty-state p {
  font-size: 0.9rem;
  color: #94a3b8;
  margin: 0;
}

/* ==========================================================================
   PORTFOLIO VIDEO LIGHTBOX MODAL
   ========================================================================== */
.portfolio-video-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.portfolio-video-modal.is-open {
  display: flex;
  animation: modalFadeIn 0.25s ease forwards;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.portfolio-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.portfolio-modal-container {
  position: relative;
  z-index: 2;
  background: #090b10;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  max-height: 92vh;
  transition: all 0.25s ease;
  animation: modalScaleUp 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modalScaleUp {
  from { transform: scale(0.94); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.portfolio-modal-container.is-landscape {
  width: 90vw;
  max-width: 920px;
}

.portfolio-modal-container.is-portrait {
  width: 90vw;
  max-width: 540px;
  max-height: 90vh;
}

.portfolio-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.2s ease;
}

.portfolio-modal-close:hover {
  background: rgba(239, 68, 68, 0.85);
  border-color: rgba(239, 68, 68, 0.95);
  transform: rotate(90deg);
}

.portfolio-modal-body {
  width: 100%;
  background: #000000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-player-wrapper {
  position: relative;
  width: 100%;
  background: #000000;
}

.portfolio-player-wrapper.ratio-16-9 {
  aspect-ratio: 16 / 9;
}

.portfolio-player-wrapper.ratio-9-16 {
  aspect-ratio: 9 / 16;
  max-height: 72vh;
  max-width: 405px;
  margin: 0 auto;
}

.portfolio-iframe-player,
.portfolio-video-player {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.portfolio-video-player {
  object-fit: contain;
}

.portfolio-modal-info,
.portfolio-modal-meta {
  padding: 18px 24px 22px;
  background: #090b10;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.portfolio-modal-action {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.portfolio-modal-insta-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #ffffff;
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 4px 14px rgba(220, 39, 67, 0.3);
}

.portfolio-modal-insta-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(220, 39, 67, 0.45);
  color: #ffffff;
  opacity: 0.95;
}

.portfolio-modal-yt-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 15px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #ffffff;
  background: rgba(220, 38, 38, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.45);
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.portfolio-modal-yt-btn:hover {
  background: rgba(220, 38, 38, 0.9);
  border-color: rgba(239, 68, 68, 0.9);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.4);
}

.portfolio-modal-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 9999px;
  margin-bottom: 8px;
}

.portfolio-modal-badge.badge-landscape {
  background: rgba(37, 99, 235, 0.25);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.portfolio-modal-badge.badge-portrait {
  background: rgba(147, 51, 234, 0.25);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.4);
}

.portfolio-modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 6px;
  line-height: 1.4;
  word-break: keep-all;
}

.portfolio-modal-desc {
  font-size: 0.88rem;
  color: #94a3b8;
  margin: 0;
  line-height: 1.5;
  word-break: keep-all;
}

.portfolio-player-error {
  padding: 48px 24px;
  color: #f87171;
  text-align: center;
  font-size: 0.92rem;
}

.portfolio-youtube-fallback-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 16px;
  background: rgba(15, 23, 42, 0.75);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.78rem;
  color: #94a3b8;
}

.portfolio-youtube-fallback-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.portfolio-youtube-fallback-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #f87171;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s ease;
}

.portfolio-youtube-fallback-link:hover {
  color: #ef4444;
  text-decoration: underline;
}

/* Instagram Embed Container & Loading */
.portfolio-insta-container {
  position: relative;
  width: 100%;
  max-width: 540px;
  min-height: 580px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #000000;
  border-radius: 12px;
  overflow: hidden;
  border: none;
}

@media (max-width: 640px) {
  .portfolio-insta-container {
    min-height: 460px;
  }
}

.portfolio-insta-container.is-loaded {
  min-height: auto;
}

.portfolio-insta-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px 20px;
  background: #000000;
  z-index: 2;
  transition: opacity 0.2s ease;
}

.portfolio-insta-loading-icon-wrap {
  position: relative;
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-insta-loading-icon {
  color: #c084fc;
  opacity: 0.85;
}

.portfolio-insta-spinner {
  position: absolute;
  inset: 0;
  border: 2px solid rgba(192, 132, 252, 0.18);
  border-top-color: #c084fc;
  border-radius: 50%;
  animation: instaSpinnerRotate 0.9s linear infinite;
}

@keyframes instaSpinnerRotate {
  to { transform: rotate(360deg); }
}

.portfolio-insta-loading-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: #94a3b8;
  margin: 0;
  letter-spacing: -0.01em;
}

.portfolio-insta-embed-wrap {
  width: 100%;
  max-width: 540px;
  max-height: 72vh;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #000000;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease;
  z-index: 1;
  border: none;
}

.portfolio-insta-embed-wrap.is-ready {
  opacity: 1;
  visibility: visible;
}

.portfolio-insta-embed-wrap blockquote.instagram-media {
  border: none !important;
  border-top: none !important;
  box-shadow: none !important;
  margin: 0 auto !important;
}

.portfolio-insta-embed-wrap iframe.instagram-media {
  max-height: 70vh !important;
  border: none !important;
  border-top: none !important;
  box-shadow: none !important;
}

.portfolio-insta-fallback,
.portfolio-insta-timeout-fallback {
  padding: 40px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: #000000;
  width: 100%;
  min-height: 380px;
}

.portfolio-insta-fallback p,
.portfolio-insta-timeout-msg {
  color: #94a3b8;
  font-size: 0.875rem;
  margin: 0;
  line-height: 1.5;
}

/* Responsive adjustments */
@media (max-width: 1100px) and (min-width: 769px) {
  .portfolio-filter-wrap {
    margin-bottom: 44px;
  }

  .portfolio-gallery-wrapper {
    gap: 58px;
  }

  .portfolio-grid-landscape {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .portfolio-grid-portrait {
    grid-template-columns: repeat(3, minmax(0, 230px));
    gap: 20px;
  }

  .portfolio-card.aspect-portrait {
    max-width: 230px;
  }
}

@media (max-width: 768px) {
  .portfolio-filter-wrap {
    margin-bottom: 40px; /* Mobile filter -> section 간격: 36~44px (적용: 40px) */
  }

  .portfolio-gallery-wrapper {
    gap: 52px; /* Mobile section gap: 48~56px (적용: 52px) */
  }

  .portfolio-group-header {
    margin-bottom: 18px;
  }

  .portfolio-group-title {
    font-size: 1.25rem;
  }

  .portfolio-group-desc {
    font-size: 0.85rem;
    margin: 0 0 0 12px;
  }

  /* 가로형: 모바일 1열 */
  .portfolio-grid-landscape {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .portfolio-card.aspect-landscape .portfolio-card-body {
    min-height: auto;
  }

  /* 세로형: 모바일 2열 우선 */
  .portfolio-grid-portrait {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    justify-content: stretch;
  }

  /* 모바일 세로형 카드 max-width 제한 완화 및 타이포 컴팩트화 */
  .portfolio-card.aspect-portrait {
    max-width: none;
    max-height: none;
  }

  .portfolio-card.aspect-portrait .portfolio-card-media {
    max-height: none;
  }

  .portfolio-card.aspect-portrait .portfolio-card-body {
    padding: 12px 12px 14px;
    min-height: auto;
  }

  .portfolio-card.aspect-portrait .portfolio-card-title {
    font-size: 0.94rem;
    line-height: 1.4;
  }

  .portfolio-card.aspect-portrait .portfolio-card-desc {
    font-size: 0.82rem;
    line-height: 1.45;
    margin-top: 6px;
  }

  .portfolio-card.aspect-portrait .portfolio-badge {
    font-size: 0.7rem;
    padding: 4px 7px;
  }

  .portfolio-tabs {
    width: 100%;
    justify-content: space-between;
  }

  .portfolio-tab-btn {
    padding: 8px 12px;
    font-size: 0.8rem;
    flex: 1;
    text-align: center;
  }

  .portfolio-modal-container.is-landscape,
  .portfolio-modal-container.is-portrait {
    width: 95vw;
  }

  .portfolio-modal-info,
  .portfolio-modal-meta {
    padding: 14px 16px 18px;
  }

  .portfolio-modal-title {
    font-size: 1rem;
  }
}

@media (max-width: 360px) {
  .portfolio-grid-portrait {
    gap: 10px;
  }

  .portfolio-card.aspect-portrait .portfolio-card-body {
    padding: 10px 8px 12px;
  }

  .portfolio-card.aspect-portrait .portfolio-card-title {
    font-size: 0.88rem;
  }

  .portfolio-card.aspect-portrait .portfolio-card-desc {
    font-size: 0.78rem;
  }
}